Definitions / Recently Added

A T cell that has some characteristics of NK cells. It produces large amounts of cytokines when stimulated, and is activated by fatty substances (lipids) bound to non­-MHC molecules called CD1d.

FK Reading Ease
47.8

FK Grade Level
High School
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  • A large granule­containing lymphocyte that recognizes and kills cells lacking self antigens. These cells’ target recognition molecules are different from T cells.

    FK Reading Ease
    26.5

    FK Grade Level
    College
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  • Powerful chemical substances secreted by monocytes and macrophages. These molecules help direct and regulate the immune responses.

    FK Reading Ease
    9.1

    FK Grade Level
    College
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  • A large phagocytic white blood cell which, when entering tissue, develops into a macrophage.

    FK Reading Ease
    35.5

    FK Grade Level
    High School
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  • An antibody produced by a single B cell or its identical progeny that is specific for a given antigen. Monoclonal antibodies are used as research tools for binding to specific protein molecules and are invaluable in research, medicine, and industry.

    FK Reading Ease
    21.6

    FK Grade Level
    College
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  • The smallest amount of a specific chemical substance. Large molecules such as proteins, fats, carbohydrates, and nucleic acids are the building blocks of a cell, and a gene determines how each molecule is produced.

    FK Reading Ease
    46.5

    FK Grade Level
    High School
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  • A subset of T cells and B cells that have been exposed to antigens and can then respond more readily when the immune system encounters those same antigens again.

    FK Reading Ease
    49

    FK Grade Level
    College
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  • A granulocyte found in tissue. The contents of mast cells, along with those of basophils, are responsible for the symptoms of allergy.

    FK Reading Ease
    57.2

    FK Grade Level
    Middle School
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  • A group of genes that controls several aspects of the immune response. MHC genes code for “self” markers on all body cells.

    FK Reading Ease
    76.5

    FK Grade Level
    Elementary School
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  • A large and versatile immune cell that devours invading pathogens and other intruders. Macrophages stimulate other immune cells by presenting them with small pieces of the invaders.

    FK Reading Ease
    33.3

    FK Grade Level
    High School
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